A spiral flow-guided hot gas defrosting pipe based on nano-coating

Abstract

This utility model discloses a spiral-guided hot gas defrosting pipe based on a nano-coating, relating to the field of hot gas defrosting pipe technology. It includes a main pipe and a spiral guide assembly, which is disposed on the inner wall of the main pipe to guide the airflow inside the main pipe in a spiral manner. Through the spiral guide assembly, the hot gas entering the main pipe is forced to flow along a spiral path by the spiral guide column, thereby prolonging the residence time of the hot gas in the main pipe, increasing the contact area and contact time with the inner wall of the main pipe, and allowing heat to be transferred more evenly to the inner wall of the main pipe, avoiding localized insufficient or excessive heat, and improving defrosting performance. Simultaneously, the nano-coating facilitates the use of low surface energy characteristics to reduce the adhesion of condensate after defrosting, reducing the rate of secondary frosting. Furthermore, the nano-coating, with its high thermal conductivity, accelerates the transfer of heat from the pipe wall to the frost layer, improving melting efficiency.

Description

Technical Field

[0001] This utility model relates to the field of hot gas defrosting pipe technology, specifically a spiral flow-guiding hot gas defrosting pipe based on a nano-coating. Background Technology

[0002] During the operation of refrigeration equipment, the evaporator surface is prone to frost formation due to temperatures below the dew point. The frost layer significantly reduces heat exchange efficiency and increases energy consumption. Therefore, regular defrosting is a key aspect of ensuring stable equipment operation. Hot gas defrosting, a commonly used defrosting method, involves introducing high-temperature refrigerant gas into the evaporator piping to melt the frost layer using its heat.

[0003] However, in traditional straight-pipe structures, the hot air flows through a short and scattered path within the pipe, resulting in insufficient contact with the pipe wall. This leads to insufficient heat transfer in some areas, causing slow frost melting, while other areas experience concentrated heat and energy waste. Furthermore, condensation easily remains on the pipe wall surface, which accelerates the formation of new frost during subsequent operation, further affecting the sustainability of the defrosting effect. Additionally, the hot air flowing through the pipe may carry a small amount of incompletely evaporated liquid refrigerant, causing interference and impacting defrosting efficiency. Therefore, a spiral-guided hot air defrosting pipe based on a nano-coating is urgently needed to solve these problems. Utility Model Content

[0004] The purpose of this invention is to provide a spiral flow-guided hot gas defrosting tube based on a nano-coating, so as to solve the problems of uneven defrosting and low efficiency of existing hot gas defrosting tubes mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a spiral flow-guiding hot gas defrosting pipe based on a nano-coating, comprising a main pipe, and further comprising:

[0006] A spiral flow guide assembly is disposed on the inner wall of the main tube and is used to spirally guide the airflow inside the main tube.

[0007] A gas-liquid separation component is disposed on the inner wall of the main tube and is used to separate the gas and liquid flow inside the main tube.

[0008] Preferably, the spiral guide assembly includes a spiral guide column, which is fixedly connected to the inner wall of the main tube, and the surface of the main tube is provided with a nano-coating.

[0009] Preferably, the gas-liquid separation component includes a fixing ring, which is fixedly connected to the inner wall of the main tube. A spiral blocking ring is fixedly connected to the inner wall of the fixing ring, and multiple drainage holes are provided on both the inner wall of the fixing ring and the inner wall of the main tube.

[0010] Preferably, a high-temperature resistant elastic buffer layer is fixedly connected to the inner wall of the main tube, and the inner wall of the high-temperature resistant elastic buffer layer is fixedly connected to the surface of the spiral guide column.

[0011] Preferably, a collection box is fixedly connected to the surface of the main tube, and a connector is fixedly connected to the inner wall of the collection box. All of the multiple drainage holes 2 are located inside the collection box.

[0012] Preferably, the surface of the main tube is provided with threaded teeth, and the inner wall of the main tube is provided with threaded grooves.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] The spiral flow guide component forces the hot air entering the main tube to flow along a spiral path, thereby extending the residence time of the hot air in the main tube, increasing the contact area and duration with the inner wall of the main tube, and allowing heat to be transferred more evenly to the inner wall of the main tube. This avoids local heat deficiency or excess and improves defrosting performance. At the same time, the nano-coating makes it easier to reduce the adhesion of condensate after defrosting by utilizing its low surface energy characteristics, thus reducing the rate of secondary frosting. In addition, the nano-coating accelerates the transfer of heat from the tube wall to the frost layer due to its high thermal conductivity, improving melting efficiency. Furthermore, the gas-liquid separation component ensures that the liquid refrigerant that has not been completely evaporated inside the main tube is blocked by the spiral blocking ring as it flows through the main tube with the airflow. The blocked liquid refrigerant is discharged through multiple drain holes, thus preventing it from entering other areas of the evaporator with the hot air and affecting defrosting efficiency. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0016] Figure 2 This is a partial cross-sectional view of the spiral flow guide assembly of this utility model;

[0017] Figure 3 This is a partial cross-sectional view of the spiral guide column of this utility model;

[0018] Figure 4 for Figure 2 Enlarged structural diagram at point A in the middle.

[0019] In the diagram: 1. Main tube; 201. Spiral guide column; 202. Nano-coating; 203. High-temperature resistant elastic buffer layer; 301. Fixing ring; 302. Spiral blocking ring; 303. Drain hole; 304. Collection box; 305. Connector; 4. Thread; 5. Thread groove. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] Please see Figure 1 - Figure 4 The present invention provides a spiral flow-guiding hot gas defrosting pipe based on a nano-coating, comprising a main body pipe 1, and further comprising:

[0022] A spiral flow guide assembly is disposed on the inner wall of the main body tube 1 and is used to spirally guide the airflow inside the main body tube 1.

[0023] A gas-liquid separation component is disposed on the inner wall of the main tube 1 and is used for gas-liquid separation of the airflow inside the main tube 1.

[0024] The spiral flow guiding component facilitates the spiral flow of air inside the main tube 1, thereby making full use of thermal energy, reducing energy waste, and improving defrosting performance. The gas-liquid separation component facilitates the separation and return of liquid refrigerant, preventing it from entering other areas of the evaporator with the hot air and affecting defrosting efficiency.

[0025] Furthermore, the spiral flow guiding assembly includes a spiral flow guiding column 201, which is fixedly connected to the inner wall of the main tube 1. The surface of the main tube 1 is provided with a nano-coating 202. Through the spiral flow guiding assembly, the hot air entering the main tube 1 is forced to flow along a spiral path through the spiral flow guiding column 201, thereby prolonging the residence time of the hot air in the main tube 1, increasing the contact area and contact time with the inner wall of the main tube 1, so that the heat is transferred to the inner wall of the main tube 1 more evenly, avoiding local heat deficiency or excess, and improving defrosting performance. At the same time, the nano-coating 202 makes it easy to reduce the adhesion of condensate after defrosting by utilizing its low surface energy characteristics, reducing the rate of secondary frosting. Meanwhile, the nano-coating 202 accelerates the transfer of heat from the tube wall to the frost layer due to its high thermal conductivity, improving melting efficiency.

[0026] Furthermore, the gas-liquid separation component includes a fixing ring 301, which is fixedly connected to the inner wall of the main tube 1. A spiral blocking ring 302 is fixedly connected to the inner wall of the fixing ring 301. Both the inner wall of the fixing ring 301 and the inner wall of the main tube 1 are provided with multiple drain holes 303. A collection box 304 is fixedly connected to the surface of the main tube 1. A connector 305 is fixedly connected to the inner wall of the collection box 304. The multiple drain holes 303 are all located inside the collection box 304. Through the gas-liquid separation component, the liquid refrigerant that has not been completely evaporated inside the main tube 1 is separated. As the airflow flows inside the main tube 1, it is blocked by the spiral blocking ring 302. The blocked liquid refrigerant is discharged through multiple drain holes 303, thus preventing it from entering other areas of the evaporator with the hot air and affecting the defrosting efficiency. At the same time, the spiral direction of the spiral blocking ring 302 is consistent with the spiral guide column 201, thus ensuring that the flow of hot air is not disturbed. The collection box 304 and the connector 305 are used in conjunction to connect the connector 305 to the liquid refrigerant return channel, thus facilitating the collection and return of the separated liquid refrigerant.

[0027] Furthermore, a high-temperature resistant elastic buffer layer 203 is fixedly connected to the inner wall of the main tube 1. The inner wall of the high-temperature resistant elastic buffer layer 203 is fixedly connected to the surface of the spiral guide column 201. The high-temperature resistant elastic buffer layer 203 facilitates the elimination of hot gas leakage caused by the assembly gap between the spiral guide column 201 and the main tube 1. It also provides a buffer for the expansion and contraction of the pipeline due to temperature changes, prevents deformation of the guide structure of the spiral guide column 201, and ensures the stability of the spiral guide effect during long-term use.

[0028] Furthermore, the surface of the main tube 1 is provided with threaded teeth 4, and the inner wall of the main tube 1 is provided with threaded grooves 5. The threaded teeth 4 and the threaded grooves 5 are used in conjunction to facilitate the quick connection between multiple main tubes 1 according to the actual pipeline length requirements.

[0029] Working principle: During use, the spiral flow guiding component forces the hot air entering the main tube 1 to flow along the spiral path through the spiral flow guiding column 201, thereby prolonging the residence time of the hot air in the main tube 1, increasing the contact area and contact time with the inner wall of the main tube 1, and making the heat more evenly transferred to the inner wall of the main tube 1, avoiding local heat deficiency or excess, and improving defrosting performance. At the same time, the nano coating 202 makes it easy to reduce the adhesion of condensate after defrosting by utilizing its low surface energy characteristics, reducing the speed of secondary frosting. Meanwhile, the nano coating 202 accelerates the transfer of heat from the tube wall to the frost layer due to its high thermal conductivity, improving melting efficiency.

[0030] Meanwhile, the gas-liquid separation component ensures that the incompletely evaporated liquid refrigerant inside the main tube 1 is blocked by the spiral blocking ring 302 as it flows through the main tube 1 with the airflow. The blocked liquid refrigerant is discharged through multiple drain holes 303, thus preventing it from entering other areas of the evaporator with the hot air and affecting the defrosting efficiency. At the same time, the spiral direction of the spiral blocking ring 302 is consistent with the spiral guide column 201, thus ensuring that the hot air flow is not disturbed. The collection box 304 and the connector 305 work together to connect the connector 305 to the liquid refrigerant return channel, thus facilitating the collection and return of the separated liquid refrigerant.

[0031] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A nano-coating based spiral deflector hot air de-frosting pipe comprising a main pipe (1), characterized in that, Also includes: A spiral flow guide assembly is disposed on the inner wall of the main tube (1) for spiral flow guide of the airflow inside the main tube (1); A gas-liquid separation component is disposed on the inner wall of the main tube (1) for gas-liquid separation of the airflow inside the main tube (1).

2. A nano-coating based helical guiding hot defrosting tube according to claim 1, characterized in that: The spiral guide assembly includes a spiral guide column (201), which is fixedly connected to the inner wall of the main tube (1), and the surface of the main tube (1) is provided with a nano-coating (202).

3. A nano-coating based helical guiding hot defrosting tube according to claim 1, characterized in that: The gas-liquid separation assembly includes a fixing ring (301), which is fixedly connected to the inner wall of the main tube (1). A spiral blocking ring (302) is fixedly connected to the inner wall of the fixing ring (301). Both the inner wall of the fixing ring (301) and the inner wall of the main tube (1) are provided with multiple drainage holes (303).

4. A nano-coating based helical guiding hot defrosting tube according to claim 2, characterized in that: The inner wall of the main tube (1) is fixedly connected to a high-temperature resistant elastic buffer layer (203), and the inner wall of the high-temperature resistant elastic buffer layer (203) is fixedly connected to the surface of the spiral guide column (201).

5. A nano-coating based helical guiding hot defrosting tube according to claim 3, characterized in that: A collection box (304) is fixedly connected to the surface of the main tube (1), and a connector (305) is fixedly connected to the inner wall of the collection box (304). Multiple drainage holes (303) 2 are all located inside the collection box (304).

6. A nano-coating based helical guiding hot defrosting tube according to claim 1, characterized in that: The surface of the main tube (1) is provided with thread teeth (4), and the inner wall of the main tube (1) is provided with thread grooves (5).

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